General Synonyms:
* Factual
* Instructive
* Didactic
* Educational
* Explanatory
* Descriptive
* Informing
* Enlightening
* Illuminating
* Knowledge-based
More specific synonyms:
* For written material: Informative, expository, reportive, journalistic, documentary
* For events or activities: Instructional, educational, educational, training, seminar, workshop
* For people: Knowledgeable, well-informed, learned, erudite
Words with a similar meaning but different connotations:
* Informative: This emphasizes the act of providing information.
* Enlightening: This suggests that the information is revealing or insightful.
* Instructive: This implies that the information is intended to teach something.
* Educational: This suggests that the information is designed to increase knowledge.
The best synonym to use will depend on the specific context and the tone you want to convey.